{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Furthermore , in human urine conversion of the ultimate , inactive mercapturic acid conjugate back into its corresponding bioactive form is increased at alkaline as compared to neutral pH ."}
{"Chemical": ["mercapturic acid"]}